drift lead: Meaning and Definition of

drift' lead"

Pronunciation: (led), [key]
— Naut. Naut.
  1. a lead indicating, by the angle its line makes with the perpendicular, the movement of a supposedly stationary ship or the movement of water past a stationary ship.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.